@misc{indiciaec06c23e2a60e, title = {Distribution of ore deposits and spectrographic analyses of some rocks and ores on the Colorado Plateau}, author = {Leonard Benjamin Riley and Eugene Merle Shoemaker}, year = {1952}, doi = {10.3133/tei278}, url = {https://pubs.usgs.gov/publication/tei278}, note = {Source identifier: tei278} }